Microchip MCP73871T-2CCI/ML, Li Ion Charger IC, 4.4 V, 500mA 20-Pin, QFN

The Microchip 1A fully integrated linear solution for system load sharing and Li Ion or Li Polymer battery charge management with AC to DC wall adapter and USB port power sources selection. Its also capable of autonomous power source selection between input or battery. This device employs a constant current/constant voltage charge algorithm with selectable charge termination point.

Integrated system load sharing and battery charge management
Simultaneously power the system and charge the li ion battery
Integrated pass transistors
Integrated current sense
Integrated reverse discharge protection